[CentOS] Cacti/snmp question

Whit Blauvelt whit at transpect.com
Mon Jun 14 22:20:51 UTC 2010


On Mon, Jun 14, 2010 at 03:55:10PM -0500, Les Mikesell wrote:

> I happen to like OpenNMS (http://www.opennms.org) but it is considerably 
> more complicated than cacti to set up. 

Thanks. I don't mind complicated if the documentation is clear. Cacti is in
that fuzzy area where it's not quite simple, and the docs aren't quite clear
(at least not to my learning style). It looks like OpenNMS is mostly in the
same space as Nagios, which we're already happy with and have no motivation
to replace. Would there be a stripped-down usage to just give us the
per-core CPU usage graphs which are what we currently need (and have no
notion how to add to Nagios, if it can even be done); does OpenNMS already
have a per-core CPU usage graphing capability.

> And I think your SNMP server setup is the real problem. Do you get a
> response with snmpwalk using the same community name?

Yes, snmpwalk gives a good response. (Although to confuse things, the CentOS
man page for snmpwalk is years out of date and doesn't present the current
syntax - still, it has a current built-in help page.)

Whit



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